Shuttle binder



Nov. 28, 1961 A. J. PRUITT ErAL SHUTTLE BINDER Filed Jan. 23, 1961 ATTORNEY United States Patent 3,010,483 A SHU'ITLE BINDER Aubrey J. Pruitt, Charlie C. Butler, and Louise C. Kellett, Greenville, S.C., assignors to Loom Products Co., Inc., Greenville, 4S.C., a corporation of South Carolina Filed Jan. 23, 1961, Ser. No. 84,304

2 Claims. (Cl. 139-185) s This invention relates to shuttle binders and particularly to an improved shuttle binder provided with cushioning means to prevent wear on the binder.

During Weaving the boxing mechanism of the loom is subjected to repeated impacts of the shuttle so that the construction of the parts of the boxing mechanism from the standpoint of protection against wear is of prime importance. This is especially true of the shuttle binder which performs the function of resiliently confining the shuttle against the face plate of the shuttle box. As the shuttle entersthe box 'the shuttle binder receives the ini` tial impact and laterally dislodged'against the force of a spring. Shuttle binders are normally provided -with what is known as binder' leather to provide a wearing surface for the binder. Upon repeated impacts by the shuttle during weaving the binder leather wears excessively at the place of impact causing the leather to become scuffed. This scuffed leather, in some instance, results in damage to the shuttle itself due to the excessive friction produced thereby. A solution to this problem which would give the binder leather longer wear by reducing the effect of the shuttle impacts has long been sought. Attempts to solve this problem have included the use of inatable cushioning elements as well as the use of plural deformable elements with means limiting such deformation. Such attempts have not been successful because of structural complexity and limited eectiveness.

Accordingly, it is an object of this invention to improve the wearing characteristics of the shuttle binder leather.

An important object of this invention is to provide a suitable cushion between the binder wood and the binder leather.

Another object of this invention is to provide a cushion between the binder wood and binder leather of a shuttle binder which will be of simple construction and require a minimum of removal of binder wood so as not to reduce the strength of the binder.

Still another object of the invention is to provide a cushion insert in a shuttle binder between the binder leather and the binder Wood which will be resilient and yet not break down or wear excessively upon receiving repeated shuttle impacts.

Still another object of the invention is to provide an improved shuttle binder which im'll provide a cushioning eEect upon the reception of a shuttle within the shuttle box which may be inexpensively constructed and provide a maximum period of wear.

The construction designed to carry out the invention will be hereinafter' described, together with other features thereof.

The invention will be more readily understood from a reading of the following specification and by reference to the accompanying drawing forming a part thereof, wherein an example of the invention is shown and wherein:

FIGURE l is a perspective view showing a shuttle box with parts omitted and parts broken away illustrating a binder constructed in accordance with the present invention,

FIGURE 2 is a transverse sectional view taken on the line 2-2 in FIGURE l, and

FIGURE 3 is a perspective view showing the resilient insert of the present invention.

3,010,483 Patented Nov. 28, 1961 ice Referring more particularly to the drawing, a shuttle binder is illustrated having the usual elongated spring biased member A. This member A is usually constructed largely of wood. A receptacle B is formed within the inner surface of the elongated member A extending over the area contacted by the shuttle and is substantially rectangular in cross-section. An insert C of flexible closed such a way that the surface of the insert conforms with4 the surface of the spring biased member A. A 'binder leather D covers the insert and the inner shuttle engaging surface of the binder.

A Ishuttle boxing device is illustrated in FIGURE l as being mounted upon the lay wood 10. 'I'he lay end plate 11 is carried upon the lay wood 10 `and a picker 12 is carried by a picker stick 13 which is accommodated within the usual slot 14 within the lay. The shuttle binder 15 serves to coniine the shuttle 16, illustrated in broken lines, against the front plate 17. It will be noted that the front plate 17 is secured to the lay end plate by suitable fastening means illustrated as including the bolt 18. The front plate is provided with a leather covering 19 to serve as a wearing surface. The leather 19 passes entirely around the inner surface of the front plate and is secured adjacent its ends as by the screw Z0.

During weaving the shuttle is resiliently urged against the leather covering 19 of the front plate by the spring biased binder 15. The spring biased binder is pivotally mounted remote from the shuttle entry end of the shuttle box upon a suitable pivot pin 21. A leaf spring 22 illustrated in dotted lines as being secured at 23 to the lay urges the shuttle binder 15 inwardly for that purpose. In FIGURE l the shuttle 16 is illustrated in a position just entering the shuttle box and will engage the binder 15 adjacent a point where the curved portion 24 joins the at extension 25. A projection 26 extending inwardly toward the center of the loom carries a buiier element 27 which engages a member (not shown) which limits the lateral displacement of the binder upon engagement by the shuttle.

As outlined above the portion of the binder commonly known as the binder wood A has a receptacle B within its inner surface to receive an insert C constructed of a flexible closed cell rubbery material consisting essentially of neoprene. 'l'he insert is thus held between the binder leather D and the binder wood A and is preferably secured therein by a suitable adhesive means 28. 'Ihe adhesive means 28 may consist of any suitable glue preferably having a rubber base. It is to be understood that substitutes for the binder leather which are not genuine leather are available and that the term "binder leather as used herein contemplates equivalent materials and those serving a similar function.

It is important that the insert C be substantially rectangular in cross-section so as to be accommodated bctween the binder wood A and the binder leather D and extend from the point of initial impact by the shuttle along the shuttle to provide an elongated ilat surface 29 which is effective during the entire binder shuttle checking operation. It is also important that the insert C be constructed of a material capable of withstanding successive impacts by the shuttle. Such a material is described in U. S. Letters Patent No. 2,873,481 and a closed cellular material having the following composition in Nitrogen flowing agents 8 It is thus seen that a shuttle binder capable of checking the impact of a shuttle upon its entry into the shuttle box wih a minimum of Wear has been provided. The improved boxing features resulting from the' practice of the invention are of great importance. The shock of the im pact of the shuttle upon entry is reduced so that smoother',

boxing results. The innerv binder surface is compressible because of the inserty so as to prevent excessive binding of the shuttle thus preventing choking of the shuttle. A minimum of'binder wood has been removed to accommodate the rectangular insert so that the binder is not excessively weakened. The closed cell resilient material is capable of receiving, successive impacts of the shuttle without excessive wear and prevents excessive Wearing of the binder leather as well as of the shuttle.

While a preferred embodiment of the invention has been describedl using specific terms, such description is for illustrative purposes only, and itis to be understood that changes and variations may be made without departing from the spirit or scope of the following claims.

What is claimed is: Y

l. In a shuttle binder having an elongated spring biased member, the improvement including, a receptacle formed within said elongated member `extending over the area contacted by the shuttle, an insert substantially lling the receptacle constructed of a flexible closed cell rubbery 4 material capable of withstanding successive impacts by the shuttle, said insert being of substantially uniform rectang ular cross-section, so that the surface of said insert conforms with the inner surface of the spring biased member, and a binder leather; substantially covering t-he insert and the shuttle engaging surface of the binder.

2. In a shuttle binder having an elongated spring biased member, the improvement including, a receptacle formed within said elongated member extending over the area contacted by the shuttle, an insent substantially lling the receptacle constructed of :a ilexible closed cell rubbery material consisting essentially of neoprene, said insert being of substantially uniform rectangular cross-section, so that the surface of said insert conforms with the inner surface of the spring biased member, and a binder leather" substantially covering the insert andthe shuttle engaging surface of the binder. Y

References Cited in the iile of this patent UNITED STATES PATENTS 

